/**
 * @param {string} path
 * @returns {Boolean}
 */
export function isExternal(path) {
  return /^(https?:|mailto:|tel:)/.test(path)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUsername(str) {
  const valid_map = ['admin', 'editor']
  return valid_map.indexOf(str.trim()) >= 0
}

/**
 * @param {string} url
 * @returns {Boolean}
 */
export function validURL(url) {
  const reg =
    /^(https?|ftp):\/\/([a-zA-Z0-9.-]+(:[a-zA-Z0-9.&%$-]+)*@)*((25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9][0-9]?)(\.(25[0-5]|2[0-4][0-9]|1[0-9]{2}|[1-9]?[0-9])){3}|([a-zA-Z0-9-]+\.)*[a-zA-Z0-9-]+\.(com|edu|gov|int|mil|net|org|biz|arpa|info|name|pro|aero|coop|museum|[a-zA-Z]{2}))(:[0-9]+)*(\/($|[a-zA-Z0-9.,?'\\+&%$#=~_-]+))*$/
  return reg.test(url)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validLowerCase(str) {
  const reg = /^[a-z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validUpperCase(str) {
  const reg = /^[A-Z]+$/
  return reg.test(str)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function validAlphabets(str) {
  const reg = /^[A-Za-z]+$/
  return reg.test(str)
}

/**
 * @param {string} email
 * @returns {Boolean}
 */
export function validEmail(email) {
  const reg =
    /^(([^<>()\[\]\\.,;:\s@"]+(\.[^<>()\[\]\\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/
  return reg.test(email)
}

/**
 * @param {string} str
 * @returns {Boolean}
 */
export function isString(str) {
  if (typeof str === 'string' || str instanceof String) {
    return true
  }
  return false
}

/**
 * @param {Array} arg
 * @returns {Boolean}
 */
export function isArray(arg) {
  if (typeof Array.isArray === 'undefined') {
    return Object.prototype.toString.call(arg) === '[object Array]'
  }
  return Array.isArray(arg)
}

export function CheckSocialCreditCode(Code) {
  var patrn = /^[0-9A-Z]+$/
  // 18位校验及大写校验
  if (Code.length != 18 || patrn.test(Code) == false) {
    // console.info('不是有效的统一社会信用编码！')
    return false
  } else {
    var Ancode, // 统一社会信用代码的每一个值
      Ancodevalue, // 统一社会信用代码每一个值的权重
      total = 0,
      weightedfactors = [
        1, 3, 9, 27, 19, 26, 16, 17, 20, 29, 25, 13, 8, 24, 10, 30, 28
      ], // 加权因子
      str = '0123456789ABCDEFGHJKLMNPQRTUWXY'
    // 不用I、O、S、V、Z
    for (var i = 0; i < Code.length - 1; i++) {
      Ancode = Code.substring(i, i + 1)
      Ancodevalue = str.indexOf(Ancode)
      total = total + Ancodevalue * weightedfactors[i]
      // 权重与加权因子相乘之和
    }
    var logiccheckcode = 31 - (total % 31)
    if (logiccheckcode == 31) {
      logiccheckcode = 0
    }
    var Str = '0,1,2,3,4,5,6,7,8,9,A,B,C,D,E,F,G,H,J,K,L,M,N,P,Q,R,T,U,W,X,Y',
      Array_Str = Str.split(',')
    logiccheckcode = Array_Str[logiccheckcode]

    var checkcode = Code.substring(17, 18)
    if (logiccheckcode != checkcode) {
      console.info('不是有效的统一社会信用编码！')
      return false
    } else {
      console.info('yes')
    }
    return true
  }
}
